Resistance Testers 64 Items

64 Items

Resistance Testers

Resistance testers — also known as ohmmeters — are essential tools for verifying electrical safety and system reliability. From insulation resistance testers (megohmmeters) that measure extremely high resistances to low resistance ohmmeters (micro-ohmmeters) designed for precise low-ohm measurements, these instruments cover the full spectrum of resistance testing needs.

Resistance Testers
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Megger MIT525 5kV Insulation Resistance Tester
$4,499.95
Megger MOM3 handheld micro-ohmmeter with hard case and test leads, group photo
$7,499.95
Fluke 1587T 50V 100V telecom insulation multimeter Kit
$1,245.91
Megger MJÖLNER 200 micro-ohmmeter high current system in closed rugged transport case with Megger branding
$5,999.95
Fluke 1535 Insulation Tester Product with Kit View
$1,559.99
Fluke 1555 FC KIT Insulation Resistance Tester Product View
$8,175.99
Fluke 1550C KIT Insulation Resistance Tester Product View
$7,291.99
Fluke 1550C Insulation Resistance Tester Product View
$6,629.99
AEMC C.A 6240 digital micro-ohmmeter with Soft Carry bag, straps, and power cords
$2,499.95
Fluke 1555 FC Insulation Resistance Tester Product View
$7,383.99
Fluke 1555 FC Insulation Resistance Tester
Main Unit
$7,383.99
Megger MIT1025 10kV insulation resistance tester with large 10kV HV lead set and US power cord.
$5,399.95
Fluke 1503 Insulation Resistance Tester Megohmmeter with Remote Probe Test Leads Alligator Clips
$757.11
Fluke 1587 MDT FC Motor Drive Troubleshooting Kit with 1587 FC i400 9040
$1,631.75
Fluke 1507 Insulation Resistance Tester with Remote Probe and Test Leads
$891.27
Amprobe MO 100 Milliohm Meter with Test Leads
$1,527.99
Fluke 1503 EX LEAD Insulation Tester Extended Lead Kit
$701.99
Fluke 1587KIT 62MAX Plus FC Insulation Multimeter Kit with i400 Clamp
$1,357.19
Fluke 1555 FC Insulation Tester Kit Test Leads Hard Case IR Adapter
$8,175.99
Fluke 1577 Insulation Multimeter 1000V True RMS
$1,011.91
fluke-1507-insulation-resistance-tester-with-remote-probe-test-leads-alligator-clips
$1,175.19
Fluke 1587 FC Insulation Multimeter Product View
$1,038.99
AEMC BR07 Resistance Decade Box Product View
Special Price $284.05 Regular Price $299.00
AEMC 6255 Micro Ohmmeter Low Resistance Tester Product View
$5,438.75
AEMC 6292 Micro Ohmmeter left side view, open case
$7,875.50

Resistance testers and ohmmeters play a vital role in electrical maintenance, troubleshooting, and compliance testing. By accurately measuring resistance across cables, windings, and connections, they help technicians identify weaknesses before they lead to failures, downtime, or safety hazards. Our lineup includes two primary categories: 

Insulation Resistance Testers (Megohmmeters)

These instruments apply high DC test voltages to measure very high resistance values, often in the megohm to teraohm range. As specialized ohmmeters, they are used to verify the integrity of insulation in cables, transformers, and motors, ensuring systems remain safe and dependable.

Low Resistance & Micro-Ohmmeters

These testers use high test currents and four-wire measurement techniques to capture very low resistance values down to micro-ohms. Also referred to as low-resistance ohmmeters, they are essential for checking the quality of breaker contacts, busbar joints, welds, and grounding bonds where reliable, low-resistance connections are critical.

Together, these resistance testers and ohmmeters provide complete coverage for both high-resistance and low-resistance applications, making them indispensable tools for utilities, industrial plants, and field service technicians.